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US 2007/0115127 A1Published application
RFID Switching
AssigneeWinware, Inc.
InventorsLawrence Harper, Derry DeNise
Life of this patent
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Abstract
Various method and apparatus embodiments involving RFID switching are disclosed. One method embodiment, among others, includes receiving an excitation signal at a switch associated with a radio frequency identification (RFID) tag and a disabling material, and changing a state of the RFID tag with the switch based on proximity of the disabling material to the RFID tag.
Claims25
A method, comprising:
- receiving an excitation signal at a switch associated with a radio frequency identification (RFID) tag and a disabling material;
- and
- changing a state of the RFID tag with the switch based on proximity of the disabling material to the RFID tag.
A method, comprising:
- sending an excitation signal to a switch associated with a radio frequency identification (RFID) tag and a disabling material;
- and
- receiving a response to the excitation signal based on a separation distance between the disabling material and the RFID tag, the separation distance based on a change in the switch.
A radio frequency identification (RFID) switch, comprising:
- a first member comprising a disabling material;
- a second member in moveable relationship with respect to the first member;
- and
- a multi-state radio frequency identification (RFID) tag coupled to the second member that changes state based on a separation distance between the RFID tag and the disabling material.
1 more element
Dependencies are inferred from the claim text.